First two were fine, but then I went to the hint and felt misdirected. Who associates a snake with a farm? Even a donkey is a bit of a stretch, and everything I've ever seen says the "hee-haw", not bray. Great idea, poorly executed.

Got 1,2 and 4. Three eluded me. I kept trying to find farm animals. The only one that I could get out of that was hen but the rest of the letters didn't make any sound that a hen would make. Snake is not considered a farm animal.